A bald patch of hair on a dog's leg generally cannot heal on its own. If the dog's leg is injured, the hair follicles will be damaged and temporary baldness will occur. It is recommended that the owner use iodophor to disinfect the dog's leg in time, and then apply antibacterial and anti-inflammatory ointment for treatment. Only after the wound and hair follicles recover can the hair grow again. If the hair follicle is necrotic, the hair cannot be restored.

Dogs suffering from fungi, bacteria, and parasites will have the above symptoms. It is recommended to consult a doctor for treatment in time, and to give drugs to help hair growth and skin recovery. The dog's diet should be light, and nutrition should be paid attention to. It is recommended that the dog eat some boiled meat, big bone soup, meat porridge, fruits and vegetables, etc.